Why would someone with good diet, no alcohol, have reactive gastritis confirmed by test 2x over several yrs? What to do to heal? 1x stomach bile seen

Food intolerance? Food or medication intolerance would be the most likely cause, although which is the source of your problem should be located by careful elimination of food types. Did your gastroenterologist test for crohn's disease, celiac sprue, etc? A careful food diary may help elicit the source of trouble. Keep at it and you will get to the bottom of the problem.